document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=643972>Question 643972</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Bank robbers brandish firearms to threaten their victims in 80% of the incidents. An announcement that six bank robbers are taking place is being broadcast. What is the probability that a firearm is being used in atleast one of the robberies? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #404727 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=404727\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Bank robbers brandish firearms to threaten their victims in 80% of the incidents. An announcement that six bank robbers are taking place is being broadcast. What is the probability that a firearm is being used in atleast one of the robberies?<BR>\n" );
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document.write( "Binomial Problem with n = 6 and p(gun) = 0.8<BR>\n" );
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document.write( "P(1<= x <=6) = 1 - P(x = 0)<BR>\n" );
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document.write( "= 1 - 0.2^6<BR>\n" );
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document.write( "= 1 - 0.000064<BR>\n" );
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document.write( "= 0.9999<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
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